Pumpy

I gotta hand it to Pumpy here, he knows how to mark his territory using clear and unambiguous physicality. Factor in some primal grunts and the neighboring tribe will know not to approach his female, share his drinking water or urinate on his trees.

Later he plans to stare confusedly at a mysterious black monolith while triumphant classical music plays. Suddenly it will come to him, in a flash of recognition. A bone can also function as a tool. A douche tool.